MCQOPTIONS
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MCQOPTIONS
This section includes 1728 Mcqs, each offering curated multiple-choice questions to sharpen your Engineering knowledge and support exam preparation. Choose a topic below to get started.
| 1451. |
An instrumentation amplifier has a high |
| A. | output impedance |
| B. | power gain |
| C. | CMRR |
| D. | supply voltage |
| Answer» D. supply voltage | |
| 1452. |
When multiplying in binary the decimal values 13 11, what is the third partial product? |
| A. | 100000 |
| B. | 100001 |
| C. | 0000 |
| D. | 1011 |
| Answer» B. 100001 | |
| 1453. |
This circuit is a setup for |
| A. | an antilog amplifier |
| B. | a constant-current source |
| C. | an instrumentation amplifier |
| D. | an isolation amplifier |
| Answer» E. | |
| 1454. |
Circuits that shift the dc level of a signal are called |
| A. | limiters |
| B. | clampers |
| C. | peak detectors |
| D. | dc converters |
| Answer» C. peak detectors | |
| 1455. |
How many basic binary subtraction combinations are possible? |
| A. | 4 |
| B. | 3 |
| C. | 2 |
| D. | 1 |
| Answer» B. 3 | |
| 1456. |
Use the two's complement system to add the signed numbers 11110010 and 11110011. Determine, in decimal, the sign and value of each number and their sum. |
| A. | 14 and 13; 27 |
| B. | 113 and 114; 227 |
| C. | 27 and 13; 40 |
| D. | 11 and 16; 27 |
| Answer» B. 113 and 114; 227 | |
| 1457. |
Adding in binary, the decimal values 26 + 27 will produce a sum of: |
| A. | 111010 |
| B. | 110110 |
| C. | 110101 |
| D. | 101011 |
| Answer» D. 101011 | |
| 1458. |
The magnitude of the impedance in the given circuit is approximately 500 . |
| A. | True |
| B. | False |
| Answer» B. False | |
| 1459. |
The selector inputs to an arithmetic-logic unit (ALU) determine the: |
| A. | selection of the IC |
| B. | arithmetic or logic function |
| C. | data word selection |
| D. | clock frequency to be used |
| Answer» C. data word selection | |
| 1460. |
If a variable resistor's resistance varies in a nonuniform manner as the shaft is moved, it is considered to be: |
| A. | linear |
| B. | defective |
| C. | not wirewound |
| D. | tapered |
| Answer» E. | |
| 1461. |
Power is measured in units of: |
| A. | joules x charge |
| B. | joules/work |
| C. | joules x voltage |
| D. | joules/time |
| Answer» E. | |
| 1462. |
In a purely capacitive ac circuit, the amount of energy converted to heat is proportional to the circuit's current. |
| A. | True |
| B. | False |
| Answer» C. | |
| 1463. |
Resistance is the same as impedance in an RC circuit. |
| A. | True |
| B. | False |
| Answer» C. | |
| 1464. |
In parallel RC circuits, the larger the value of C, the larger the phase angle. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 1465. |
The polarity on the side of the resistor where current enters is ______. The polarity on the side of the resistor where current exits is ___________. |
| A. | positive, positive |
| B. | negative, negative |
| C. | negative, positive |
| D. | positive, negative |
| Answer» D. positive, negative | |
| 1466. |
A voltage divider is always a _____ |
| A. | series-parallel circuit |
| B. | series circuit |
| C. | parallel circuit |
| D. | bridge circuit |
| Answer» C. parallel circuit | |
| 1467. |
Using a voltage divider the voltage across R1 is 10 V, R2 is 15 V, and R3 is 30 V. |
| A. | True |
| B. | False |
| Answer» C. | |
| 1468. |
In a series circuit, larger resistances drop larger voltages. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 1469. |
To find the total resistance in series, add the individual resistances. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 1470. |
An open in a series circuit will cause maximum voltage across the power supply terminals. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 1471. |
A short in a series circuit causes the total circuit current to decrease. |
| A. | True |
| B. | False |
| Answer» C. | |
| 1472. |
Voltage sources are added when they are series-opposing. |
| A. | True |
| B. | False |
| Answer» C. | |
| 1473. |
If 7.3 k, 1.8 k, and 4.9 k resistors are wired in series, the total resistance is 14 k. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 1474. |
The sum of the voltage drops across series resistors must equal the total voltage applied. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 1475. |
Refer the given circuits. Which circuit is known as an OTA? |
| A. | a |
| B. | b |
| C. | c |
| D. | d |
| Answer» E. | |
| 1476. |
This circuit is a setup for |
| A. | an antilog amplifier |
| B. | a constant-current source |
| C. | an instrumentation amplifier |
| D. | an isolation amplifier |
| Answer» D. an isolation amplifier | |
| 1477. |
Which circuit is known as a voltage-to-current converter? |
| A. | a |
| B. | b |
| C. | c |
| D. | d |
| Answer» C. c | |
| 1478. |
Which type of signal is represented by discrete values? |
| A. | noisy signal |
| B. | nonlinear |
| C. | analog |
| D. | digital |
| Answer» E. | |
| 1479. |
A data conversion system may be used to interface a digital computer system to: |
| A. | an analog output device |
| B. | a digital output device |
| C. | an analog input device |
| D. | a digital printer |
| Answer» B. a digital output device | |
| 1480. |
Adding the two's complement of 11 + ( 2) will yield which two's complement answer? |
| A. | 1110 1101 |
| B. | 1111 1001 |
| C. | 1111 0011 |
| D. | 1110 1001 |
| Answer» D. 1110 1001 | |
| 1481. |
The two's complement system is to be used to add the signed numbers 11110010 and 11110011. Determine, in decimal, the sign and value of each number and their sum. |
| A. | 14 and 13; 27 |
| B. | 113 and 114; 227 |
| C. | 27 and 13; 40 |
| D. | 11 and 16; 27 |
| Answer» B. 113 and 114; 227 | |
| 1482. |
The fast carry or look-ahead carry circuits found in most 4-bit parallel-adder circuits: |
| A. | increase ripple delay |
| B. | add a 1 to complemented inputs |
| C. | reduce propagation delay |
| D. | determine sign and magnitude |
| Answer» D. determine sign and magnitude | |
| 1483. |
The ______ determines whether connected resistors are in series, parallel, or series-parallel? |
| A. | current flow |
| B. | power source |
| C. | voltage flow |
| D. | wattage source |
| Answer» B. power source | |
| 1484. |
If a 3.9 k, a 7.5 k, and a 5.6 k resistor are connected in series with a 34 V source, the voltage dropped across the 7.5 k resistor equals _____. |
| A. | 34 V |
| B. | 15 V |
| C. | 7.8 V |
| D. | 11.2 V |
| Answer» C. 7.8 V | |
| 1485. |
The total resistance of a series circuit always depends on the highest value resistor in that circuit. |
| A. | True |
| B. | False |
| Answer» C. | |
| 1486. |
If four 9 V batteries are connected series-aiding, the total voltage is 36 V. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 1487. |
The total resistance is 35 . |
| A. | True |
| B. | False |
| Answer» B. False | |
| 1488. |
These components are in series. |
| A. | True |
| B. | False |
| Answer» B. False | |
| 1489. |
The total resistance of a series circuit is equal to the average of all the resistance values. |
| A. | True |
| B. | False |
| Answer» C. | |
| 1490. |
Each "1" entry in a K-map square represents ______________. |
| A. | a HIGH output on the truth table for all input combinations |
| B. | a LOW output for all possible HIGH input conditions |
| C. | a DON'T CARE condition for all possible input truth table combinations |
| D. | a HIGH for each input truth table condition that produces a HIGH output |
| Answer» E. | |
| 1491. |
One reason for using the sum-of-products form is that it can be implemented using all ______ gates without much alteration. |
| A. | AND |
| B. | NAND |
| C. | OR |
| D. | NOR |
| Answer» C. OR | |
| 1492. |
The application of Boolean algebra to the solution of digital logic circuits was first explored by ________ of ________. |
| A. | Claude Shannon, MIT |
| B. | George Boole, MIT |
| C. | George Boole, Stanford |
| D. | Claude Shannon, IBM |
| Answer» B. George Boole, MIT | |
| 1493. |
Low power consumption achieved by CMOS circuits is due to which construction characteristic? |
| A. | complementary pairs |
| B. | connecting pads |
| C. | DIP packages |
| D. | small-scale integration |
| Answer» B. connecting pads | |
| 1494. |
If a metallic conductor has a positive temperature coefficient of resistance, then: |
| A. | as temperature increases, resistance decreases |
| B. | as current increases, resistance decreases |
| C. | as voltage increases, current increases |
| D. | as temperature increases, resistance increases |
| Answer» E. | |
| 1495. |
A 22-gauge wire will have a diameter in mils of: |
| A. | 10.03 |
| B. | 22.35 |
| C. | 45.26 |
| D. | 71.96 |
| Answer» C. 45.26 | |
| 1496. |
How many amps are used by a 100 watt, 120 volt light bulb? |
| A. | 1.2 amps |
| B. | 12000 amps |
| C. | 830 mA |
| D. | 12 amps |
| Answer» D. 12 amps | |
| 1497. |
A rheostat is ___. |
| A. | a two-terminal device that controls current |
| B. | a three-terminal device that controls current |
| C. | a two-terminal device that divides voltage |
| D. | a three-terminal device that divides voltage |
| Answer» B. a three-terminal device that controls current | |
| 1498. |
One ampere of current flowing through one ohm of resistance is equal to: |
| A. | 1 horsepower |
| B. | 1 Btu |
| C. | 1 watt |
| D. | 1 joule |
| Answer» D. 1 joule | |
| 1499. |
Good insulators: |
| A. | have few electrons in their outer shells |
| B. | have a large dielectric strength |
| C. | have a small breakdown voltage |
| D. | have many electrons in the nucleus |
| Answer» C. have a small breakdown voltage | |
| 1500. |
After a lamp is turned on, its filament resistance will change to become: |
| A. | less resistive |
| B. | cooler |
| C. | brighter |
| D. | more resistive |
| Answer» E. | |